HIL Connect

True plug and play interface.

Directly interface your controller to the HIL emulator


To completely test, verify, and certify your power electronics controller in hardware-in-the-loop configuration it is critical that the controller under test is not modified in any way. Controller has to “feel” that it is controlling the real converter hardware, meaning that all the current/voltage/optical I/O interfaces have to behave as the real power stage signals. All the interface signals have to be provided by HIL and impedances and signal levels have to be matched.

Our engineers refined their immense power electronics industry experience into Connect interface system to support all major types of connectors, from terminal blocks to BNCs. Because of this, you can connect your controller to the emulator with the exact same cables that you would use in reality.

Measurement subsystem emulation


To enable direct connection of unaltered controller IO signals to the emulator, the HIL Connect device conditions and transduces IO signals (i.e. shifts voltage, converts voltage to current, voltages to light etc.).

With the HIL Connect, your controller will “feel” like it’s interfaced to LEM sensors, relays and contactors, and any sensor you can imagine.

We distilled our experience in interfacing with various controllers, protection relays, and diesel gensets, and created a universal hardware interface device.

The Universal HIL Connect conditions one row of I/O signals, from any HIL device, converting to voltage outputs of ±130 V RMS, or current outputs of up to 2 A RMS.

Like our HIL4 and HIL6 series, the Universal HIL Connect ships from stock, so you can get up-and-running fast.

Type Level (peak) Conditioned channels Bandwidth Accuracy
Analog Output  ±10 V 32 DC – 100 kHz 0.1% + 500 uV
HV Analog Output ±183.3 V 16 DC – 10 kHz 1% + 10 mV
Current Output ±2.82 A 16 DC – 120 kHz 0.1% + 600 uA
Analog Input ±10 V 16 DC – 100 kHz 0.1% + 500 uV
Digital Output 24 V 32
Digital Input 24 V 32


Read documentation

The Universal HIL Connect fits your needs, but you don’t need all of its capabilities? Or, you want to change some of its I/O specifications?

You can populate up to 8 slots on the Modular HIL Connect chassis, and create your own, semi-custom, hardware interface to our HIL emulators.

Pick between tens of different I/O cards available from stock, and receive your Modular HIL Connect in the shortest lead time possible.

Card name Code Channels Description
Low Voltage AO Card IA 32 Analog output: ±10 V
Analog Input Card IB 16 Analog input: ±10 V
Isolated LV Analog Output Card ID 16 Analog input: ±10 V isolated
Isolated MV Analog Output Card IE 16 Analog output: ±45 V isolated
Digital Output Card IF 8 Digital output: 24 V
Digital Input Card IG 32 Digital input: 3.3 V to 24 V
Isolated Digital Input Card IH 32 Digital input: 12-40VRMS AC or DC, isolated
Isolated Digital Output Card II 32  Digital output: optocoupler based, isolated
Current Output Card IJ 32 Analog output: 2A RMS
High Voltage Output Card IK 8 Analog output: 130V RMS low power
High Voltage Digital Card IL 8 Digital input: 230V AC/DC
. . . more available soon


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You want custom connectors, not found on the Universal or Modular HIL Connects? Or have a specific requirement, not satisfied by our current interface offering?

We offer a service to design and produce a fully Custom HIL Connect, per your specification.

Yours is to provide the specification, we take care of everything else.

Step 1: IO Specification   Step 2: Customization   Step 3: Commissioning
Our team of experts works with your engineers to specify all electrical, mechanical, and modeling customization tasks for your new HIL Connect system. Once the spec is approved we move to the prototyping phase. Following the specification steps our engineering team designs and manufactures your new HIL Connect system. Series of IO tests ensure the performance of the interface system. After extensive testing, HIL Connect is delivered to your site, and with the assistance from our specialists, the on-site commissioning is performed.


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HIL Connect example systems



Current, voltage, optical transducers and amplifiers with minimal customization interface with all the controller IO signals. True Plug and Play HIL.

For more details, reach out to us through the Contact form.


HIL Connect HIL Connect HIL Connect
+/- 10 V voltage output 0 – 5 V voltage outputs +/- 10 V analog outputs
+/- 175 mA current outputs +/- 5 V voltage outputs +/- 180 V voltage outputs
72 V @ 1 A battery emulators +/- 100 mA current outputs +/- 1.736 V analog inputs
thermistor emulators 5 V digital inputs +/- 3 A current outputs
5 V digital outputs 3.3 V and 24 V digital outputs 24 V digital IO